Oppenheimer Diamond

Oppenheimer Diamond
Oppenheimer Diamond displayed in the Smithsonian Institution
Type of stonediamond
Weight253.7 carats (50.74 g)
Dimensions20 mm × 20 mm (0.79 in × 0.79 in)
Coloryellow
Cut(uncut)
Country of originSouth Africa
Mine of originDutoitspan Mine
Discovered1964

The Oppenheimer Diamond, a nearly perfectly formed 253.7 carats (50.74 g) yellow diamond crystal, is one of the largest uncut diamonds in the world,[1] and measures approximately 20 mm × 20 mm (0.79 in × 0.79 in). It was discovered in the Dutoitspan Mine, Kimberley, South Africa, in 1964.[1] Harry Winston acquired the stone and presented it to the Smithsonian Institution in memory of Sir Ernest Oppenheimer.[1]

  1. ^ a b c "Oppenheimer Diamond [117538]". Smithsonian Institution. Retrieved 2013-06-29.